Raw Source Toggle Dropdown

• Minified Source

keepcalmandbelogical / page sanitizer

// ==UserScript==
// @name         page sanitizer
// @author       keepcalmandbelogical
// @description  Removes unwanted objects from the page: <object> and <iframe> tags from unknown sources
// @version      0.1.7
// @include      http://*divxatope*.com*
// @include      http://*newpct*.com*
// @include      http://*elitetorrent.net*
// @include      http://*tumejortorrent.com*
// @include      http://*descargas2020.com*
// @grant        none
// @run-at       document-end
// @downloadURL  https://openuserjs.org/install/keepcalmandbelogical/page_sanitizer.user.js
// @supportURL   https://openuserjs.org/scripts/keepcalmandbelogical/page_sanitizer/issues
// @license      MIT
// ==/UserScript==

(function() {

var sn=function(node,sn0) {
    var i,x,n;
    x=node.children;
    for(i=0;i<x.length;i++) {
        switch(x[i].tagName.toLowerCase()) {
            case "object":
                node.removeChild(x[i]);
                break;
            case "iframe":
                if(!/(http|https):\/\/(.*\.)?(youtube\.com|google\.com|facebook\.com|tweeter\.com|disqus\.com)\/.*/.test(x[i].src))
                    node.removeChild(x[i]);
                break;
            default:
                n=x[i].children.length;
                sn0.apply(this,[x[i],sn0]);
                if(n>0 && x[i].children.length===0) node.removeChild(x[i]);
                break;
        }
    }
    return node;
};

HTMLDocument.prototype.createElement=(function(sn0) {
    var sn1=sn0;
    var ce=HTMLDocument.prototype.createElement;
    return function(name) {
        var str=name.toLowerCase();
        if(/<?\w+((\s+\w+(\s*=\s*(?:".*?"|'.*?'|[\^'">\s]+))?)+\s*|\s*)?>/i.test(str))
            str=(/<?(\w+)/i.exec(str))[1];
        switch(str) {
            case "object":
            case "iframe":
            case "script":
                return null;
            default:
                return sn1.apply(this,[ce.apply(this,[name]),sn1]);
        }
    };
})(sn);

Element.prototype.appendChild=(function(sn0) {
    var sn1=sn0;
    var ac=Element.prototype.appendChild;
    return function(node) {
        switch(node.tagName.toLowerCase()) {
            case "object":
            case "iframe":
                return null;
            default:
                return ac.apply(this,[sn1.apply(this,[node,sn1])]);
        }
    };
})(sn);

Element.prototype.insertBefore=(function(sn0) {
    var sn1=sn0;
    var ib=Element.prototype.insertBefore;
    return function(node,beforeNode) {
        switch(node.tagName.toLowerCase()) {
            case "object":
            case "iframe":
                return null;
            default:
                return ib.apply(this,[sn1.apply(this,[name,sn1]),beforeNode]);
        }
    };
})(sn);

sn.apply(this,[document.body,sn]);
sn=null;
})();